SPRING4-AOP Notice

1. Create a MAVEN project, project name Springdemo50,

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2. Configure Maven, modify the Pom.xml file in the project, modify the content as follows

<project xmlns= "http://maven.apache.org/POM/4.0.0"  xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance " xsi:schemalocation=" http://maven.apache.org/POM/4.0.0 http://maven.apache.org/ Xsd/maven-4.0.0.xsd ">  <modelVersion>1.0.0</modelVersion>  <groupId> Shequ</groupid>  <artifactid>springdemo13</artifactid>  <version> 0.0.1-snapshot</version>    <properties>  <java.version>1.7 </java.version>  <project.build.sourceencoding>utf-8</project.build.sourceencoding >  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>   </properties>    <repositories>  <repository>   <id>codelds</id>  <url>https://code.lds.org/nexus/content/groups/main-repo </url>  </repository&gT;  </repositories>    <dependencies>  <dependency>   <groupid>javax.annotation</groupid>  <artifactid>jsr250-api</ artifactid>  <version>1.0</version>  </dependency>     <dependency>  <groupId>org.springframework</groupId>  < artifactid>spring-test</artifactid>  <version>4.1.4.release</version>   </dependency>    <dependency>  <groupid>junit</ Groupid>  <artifactid>junit</artifactid>  <version>4.10</version >  </dependency>    <dependency>  <groupId> org.springframework</groupid>  <artifactid>spring-core</artifactid>   <version>4.1.4.release</version>  </dependency>    <dependency>         <groupId>org.springframework</groupId>         <artifactid>spring-context</artifactid>        <version >4.1.4.RELEASE</version>    </dependency>         <dependency>        <groupId> Org.springframework</groupid>        <artifactid> spring-jdbc</artifactid>        <version>4.1.4.release< /version>    </dependency>        < dependency>        <groupid>mysql</groupid>         <artifactid>mysql-connector-java</artifactid>        < version>5.1.34</version>    </dependency>          </dependencies>  <build/></project>

3. Create the entity bean under Src/main/java Customer, package name (Com.mycompany.shequ.bean)

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4. The content of the entity Bean Customer is as follows

package com.mycompany.shequ.bean;import org.springframework.beans.factory.annotation.value;import  org.springframework.stereotype.Component; @Component ("Customerbean") public class customer  {private string name;private string email;public string getname ()  {return  name;} Public void setname (String name)  {this.name = name;} Public string getemail ()  {return email;} @Value ("#{(' [email protected] '  matches  ' ^[_a-za-z0-9-]+ (\\.[ _a-za-z0-9-]+) " +" *@[a-za-z0-9]+ (\\.[ a-za-z0-9]+) * (\\.[ A-za-z]{2,}) $ ')  ?  ' [email protected] ': ' Illegal '} ') Public void setemail (String email)  {this.email = email;}} 
 

5. Create the interface Icustomerdao under Src/main/java, package name (Com.mycompany.shequ.dao)

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The contents of 6.ICustomerDao are as follows

Package Com.mycompany.shequ.dao;public interface Icustomerdao {public void showMe ();

7. Create Icustomerdao implementation class Customerdaoimpl under Src/main/java, package name

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The contents of the 8.ICustomerDao implementation class Customerdaoimpl are as follows

Package Com.mycompany.shequ.dao.impl;import Com.mycompany.shequ.dao.icustomerdao;public Class CustomerDaoImpl Implements Icustomerdao {public void ShowMe () {System.out.println ("I ' m Customerdaoimpl");}}

9. Create a business bean Icustomerservice interface under Src/main/java, package name (Com.mycompany.shequ.service)

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The contents of the 10.ICustomerService interface are as follows

Package Com.mycompany.shequ.service;public interface Icustomerservice {public void showMe ();

11. Create the implementation class Customerserviceimpl of the business Bean Icustomerservice interface under Src/main/java, package name (COM.MYCOMPANY.SHEQU.SERVICE.IMPL)

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12. The contents of the implementation class Customerserviceimpl for the business Bean Icustomerservice interface are as follows

Package Com.mycompany.shequ.service.impl;import Com.mycompany.shequ.dao.icustomerdao;import Com.mycompany.shequ.service.icustomerservice;public class Customerserviceimpl implements Icustomerservice {private Icustomerdao customerdao;public Icustomerdao Getcustomerdao () {return customerdao;} public void Setcustomerdao (Icustomerdao customerdao) {This.customerdao = Customerdao;} public void ShowMe () {customerdao.showme ();}}

13. Create a pre-notification implementation class Methodbefore, package name (Com.mycompany.shequ.service.impl) under Src/main/java

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14. The contents of the pre-notification implementation class Methodbefore are as follows

Package Com.mycompany.shequ.service.impl;import Java.lang.reflect.method;import org.springframework.aop.methodbeforeadvice;/** * methods prior to execution notification * @author Administrator * */public class Methodbefore Implements Methodbeforeadvice {public void before (Method arg0, object[] arg1, Object arg2) throws Throwable {SYSTEM.OUT.PR Intln ("Pre-notification is executed");}}

15. Create a post-notification implementation class Methodafter, package name (Com.mycompany.shequ.service.impl) under Src/main/java

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16. Post-Notification implementation class Methodafter content as follows

Package Com.mycompany.shequ.service.impl;import Java.lang.reflect.method;import org.springframework.aop.afterreturningadvice;/** * Notification After completion of method execution * @author Administrator * */public class Methodafter Implements Afterreturningadvice {public void afterreturning (Object arg0, Method arg1, object[] arg2,object arg3) throws Th rowable {System.out.println ("Post notification is executed");}}

17. Create exception notification implementation Class ThrowException, package name (Com.mycompany.shequ.service.impl) under Src/main/java

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18. Exception notification implementation class ThrowException content is as follows

Package Com.mycompany.shequ.service.impl;import org.springframework.aop.throwsadvice;/** * Notify when exception is thrown * @author Administrator * */public class ThrowException implements Throwsadvice {public void afterthrowing ( IllegalArgumentException e) throws Throwable{system.out.println ("exception notification executed");}}

19. Create a surround Notification implementation class Aroundmethod under Src/main/java, package name (COM.MYCOMPANY.SHEQU.SERVICE.IMPL)

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20. Surround notification Implementation class Aroundmethod content as follows

Package Com.mycompany.shequ.service.impl;import Java.util.arrays;import Org.aopalliance.intercept.methodinterceptor;import org.aopalliance.intercept.methodinvocation;/** * Surround notification * @author Administrator * */public class Aroundmethod implements Methodinterceptor {public Object Invoke (Methodinvocation method) T Hrows throwable {System.out.println ("Surround notification is executed"); System.out.println ("Method name:" +method.getmethod (). GetName ()); System.out.println ("Method parameter:" +arrays.tostring (Method.getarguments ())); Object result = Method.proceed (); return result;}}

21. Under Src/main/resource, create the core configuration file Applicationcontext.xml,

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22. configuration file Applicationcontext.xml,

<beans xmlns= "Http://www.springframework.org/schema/beans" xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "xmlns:p=" http://www.springframework.org/schema/p "xmlns:context="/HTTP/ Www.springframework.org/schema/context "xmlns:util=" Http://www.springframework.org/schema/util "xsi: Schemalocation= "http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/ spring-beans-4.0.xsdhttp://www.springframework.org/schema/utilhttp://www.springframework.org/schema/util/ spring-util-4.0.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/ Spring-context-4.0.xsd "><!-- customer dao bean --><bean id=" CustomerDao "  class= "Com.mycompany.shequ.dao.impl.CustomerDaoImpl" ></bean><!-- customer  Business Layer  bean --><bean id= "CustomerService"  class= " Com.mycompany.shequ.service.impl.CustomerServiceImpl "><property name=" Customerdao " ref=" CustomeRdao "></property></bean><!--  method before execution  --><bean id=" Methodbeforebean "  class= "Com.mycompany.shequ.service.impl.MethodBefore" ></bean><!--  method execution notification after completion  --> <bean id= "Methodafterbean"  class= "Com.mycompany.shequ.service.impl.MethodAfter" ></bean> <!--  Notify  --><bean id= "Throwexceptionbean"  class= "after throwing an exception" Com.mycompany.shequ.service.impl.ThrowException "></bean><!--  Surround notification  --><bean id = "Aroundmethodbean"  class= "Com.mycompany.shequ.service.impl.AroundMethod" ></bean><bean  Id= "Customerserviceproxy"  class= "Org.springframework.aop.framework.ProxyFactoryBean" ><property  name= "target"  ref= "CustomerService" ></property><property name= "InterceptorNames" ><list><!-- methodbeforebean is the name of the predecessor notification Bean  --><value>methodbeforebean</value ><!-- methodafterbean is the name of the post-notification bean  --><value>methodafterbean</value><!-- throwexceptionbean is the name of the exception notification Bean  --><value >throwExceptionBean</value><!-- aroundmethodbean is the name of the surround notification bean  --><value> Aroundmethodbean</value></list></property></bean></beans>

23. Create a test file under Src/test/java apptest, package name (com.mycompany.shequ.test)

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24. The contents of the test file apptest are as follows

Package Com.mycompany.shequ.test;import Org.junit.test;import Org.springframework.context.configurableapplicationcontext;import Org.springframework.context.support.classpathxmlapplicationcontext;import    Com.mycompany.shequ.service.icustomerservice;public class Apptest {@Testpublic void Beantest () { Configurableapplicationcontext context = new Classpathxmlapplicationcontext ("Applicationcontext.xml"); CustomerService customerservice = (icustomerservice) context.getbean ("Customerserviceproxy"); Customerservice.showme ();}}

25. Right-click on the Beantest method of the test class apptest and output the result

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This article from the "Vegetarian Yan" blog, declined to reprint!

SPRING4-AOP Notice